Ubitron
(=Undulated Beam injector)波动射束注入器
🗣️ 情景例句
Don't forget to write.
别忘了给我写信。
It is no honour for an eagle to vanquish a dove.
老鹰胜鸽，不足为荣。
Visitors have been asked to keep the woods clean and tidy.
游客已被告知要保持树林的整洁。